PHP development enviroument, what do you use?

I must confess, I still use HTML-kit for PHP development, the only reason I use it for direct FTP editing, I know I should be ashamed of my self 🙁

The last couple of months I started to look at Subversion version control system, as a secure and professional way to edit your code, so I started shopping for new PHP IDE.

My requirements are:

• Support Arabic
• Support UTF-8
• Support Subversion

So what do you use for PHP development? and what feature is a must?

BTW, Smashing Magazine published an article covering this subject, this why I am testing NetBeans at the moment.
The Big PHP IDE Test: Why Use One And Which To Choose